interior of the underground khan's bathhouse. naryn-kala fortress, derbent. dagestan

derbent narynkala naryn kala fortress khan 039 bath bathhouse baths bathhouses hamam interior ruins inside underground arch vault stone hansky republic dagestan russia caucasus city citadel old ancient architecture landmark defensive view landscape historical heritage unesco persian russian federation deserted nobody khan#39aph39#s naryn-kala bathhouse derbent